Hollister, California, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Hollister, California, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Aug 2023
68AQILowest AQI recorded on
8th Aug 2021
15AQISame Day Analysis (13th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 26 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 13th Aug - 14th Aug 2025
Hollister, California, United States
AQI
Day
Night
.
6 AM13th Aug 2025
8 PM
5 AM14th Aug 2025
Day time
Avg. Highest Time
7AM13th Aug
34AQI
Avg. Lowest Time
12PM13th Aug
19AQI
Night time
Avg. Highest Time
8PM13th Aug
30AQI
Avg. Lowest Time
3AM14th Aug
18AQI
In the last 24 hours,
Hollister's AQI reached its highest point of 34 at 7 AM during the Day, while the lowest point, 18, was recorded at 3 AM during the Night between 13th Aug and 14th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hollister, California, United States
JulAug
15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
15th Jul 2025176 AMAQI
15th Jul 2025207 AMAQI
15th Jul 2025188 AMAQI
15th Jul 2025189 AMAQI
15th Jul 20252010 AMAQI
15th Jul 20251811 AMAQI
15th Jul 20252012 PMAQI
15th Jul 2025181 PMAQI
15th Jul 2025172 PMAQI
15th Jul 2025223 PMAQI
15th Jul 2025224 PMAQI
15th Jul 2025235 PMAQI
15th Jul 2025246 PMAQI
15th Jul 2025227 PMAQI
15th Jul 2025218 PMAQI
15th Jul 2025209 PMAQI
15th Jul 20252110 PMAQI
15th Jul 20252111 PMAQI
16th Jul 20252112 AMAQI
16th Jul 2025221 AMAQI
16th Jul 2025212 AMAQI
16th Jul 2025203 AMAQI
16th Jul 2025184 AMAQI
16th Jul 2025175 AMAQI
15°C10/25°C
16th Jul 2025186 AMAQI
16th Jul 2025177 AMAQI
16th Jul 2025188 AMAQI
16th Jul 2025169 AMAQI
16th Jul 20251710 AMAQI
16th Jul 20251711 AMAQI
16th Jul 20251812 PMAQI
16th Jul 2025181 PMAQI
16th Jul 2025202 PMAQI
16th Jul 2025213 PMAQI
16th Jul 2025224 PMAQI
16th Jul 2025245 PMAQI
16th Jul 2025246 PMAQI
16th Jul 2025187 PMAQI
16th Jul 2025188 PMAQI
16th Jul 2025199 PMAQI
16th Jul 20251810 PMAQI
16th Jul 20252011 PMAQI
17th Jul 20252212 AMAQI
17th Jul 2025221 AMAQI
17th Jul 2025182 AMAQI
17th Jul 2025173 AMAQI
17th Jul 2025164 AMAQI
17th Jul 2025225 AMAQI
16°C11/22°C
17th Jul 2025166 AMAQI
17th Jul 2025167 AMAQI
17th Jul 2025188 AMAQI
17th Jul 2025199 AMAQI
17th Jul 20252110 AMAQI
17th Jul 20252211 AMAQI
17th Jul 20252012 PMAQI
17th Jul 2025211 PMAQI
17th Jul 2025222 PMAQI
17th Jul 2025233 PMAQI
17th Jul 2025234 PMAQI
17th Jul 2025235 PMAQI
17th Jul 2025256 PMAQI
17th Jul 2025227 PMAQI
17th Jul 2025218 PMAQI
17th Jul 2025229 PMAQI
17th Jul 20252210 PMAQI
17th Jul 20252211 PMAQI
18th Jul 20252012 AMAQI
18th Jul 2025181 AMAQI
18th Jul 2025182 AMAQI
18th Jul 2025183 AMAQI
18th Jul 2025154 AMAQI
18th Jul 2025145 AMAQI
19°C12/30°C
18th Jul 2025156 AMAQI
18th Jul 2025167 AMAQI
18th Jul 2025188 AMAQI
18th Jul 2025169 AMAQI
18th Jul 20251510 AMAQI
18th Jul 20251611 AMAQI
18th Jul 20251912 PMAQI
18th Jul 2025221 PMAQI
18th Jul 2025222 PMAQI
18th Jul 2025223 PMAQI
18th Jul 2025224 PMAQI
18th Jul 2025215 PMAQI
18th Jul 2025206 PMAQI
18th Jul 2025187 PMAQI
18th Jul 2025208 PMAQI
18th Jul 2025279 PMAQI
18th Jul 20252510 PMAQI
18th Jul 20252511 PMAQI
19th Jul 20252512 AMAQI
19th Jul 2025231 AMAQI
19th Jul 2025212 AMAQI
19th Jul 2025203 AMAQI
19th Jul 2025184 AMAQI
19th Jul 2025175 AMAQI
18°C11/28°C
19th Jul 2025176 AMAQI
19th Jul 2025197 AMAQI
19th Jul 2025198 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252410 AMAQI
19th Jul 20252411 AMAQI
19th Jul 20252912 PMAQI
19th Jul 2025271 PMAQI
19th Jul 2025292 PMAQI
19th Jul 2025293 PMAQI
19th Jul 2025284 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025276 PMAQI
19th Jul 2025267 PMAQI
19th Jul 2025258 PMAQI
19th Jul 2025249 PMAQI
19th Jul 20252310 PMAQI
19th Jul 20252411 PMAQI
20th Jul 20252412 AMAQI
20th Jul 2025241 AMAQI
20th Jul 2025232 AMAQI
20th Jul 2025223 AMAQI
20th Jul 2025234 AMAQI
20th Jul 2025265 AMAQI
17°C11/28°C
20th Jul 2025256 AMAQI
20th Jul 2025257 AMAQI
20th Jul 2025268 AMAQI
20th Jul 2025279 AMAQI
20th Jul 20252310 AMAQI
20th Jul 20252011 AMAQI
20th Jul 20252312 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025252 PMAQI
20th Jul 2025253 PMAQI
20th Jul 2025234 PMAQI
20th Jul 2025225 PMAQI
20th Jul 2025226 PMAQI
20th Jul 2025237 PMAQI
20th Jul 2025248 PMAQI
20th Jul 2025229 PMAQI
20th Jul 20252310 PMAQI
20th Jul 20252411 PMAQI
21st Jul 20252412 AMAQI
21st Jul 2025231 AMAQI
21st Jul 2025222 AMAQI
21st Jul 2025203 AMAQI
21st Jul 2025174 AMAQI
21st Jul 2025155 AMAQI
16°C11/25°C
21st Jul 2025166 AMAQI
21st Jul 2025217 AMAQI
21st Jul 2025238 AMAQI
21st Jul 2025269 AMAQI
21st Jul 20252610 AMAQI
21st Jul 20252711 AMAQI
21st Jul 20252612 PMAQI
21st Jul 2025241 PMAQI
21st Jul 2025202 PMAQI
21st Jul 2025213 PMAQI
21st Jul 2025224 PMAQI
21st Jul 2025225 PMAQI
21st Jul 2025216 PMAQI
21st Jul 2025217 PMAQI
21st Jul 2025198 PMAQI
21st Jul 2025189 PMAQI
21st Jul 20251810 PMAQI
21st Jul 20252011 PMAQI
22nd Jul 20251912 AMAQI
22nd Jul 2025191 AMAQI
22nd Jul 2025192 AMAQI
22nd Jul 2025183 AMAQI
22nd Jul 2025134 AMAQI
22nd Jul 2025145 AMAQI
15°C10/25°C
22nd Jul 2025136 AMAQI
22nd Jul 2025147 AMAQI
22nd Jul 2025138 AMAQI
22nd Jul 2025139 AMAQI
22nd Jul 20251410 AMAQI
22nd Jul 20251311 AMAQI
22nd Jul 20251412 PMAQI
22nd Jul 2025141 PMAQI
22nd Jul 2025142 PMAQI
22nd Jul 2025143 PMAQI
22nd Jul 2025154 PMAQI
22nd Jul 2025165 PMAQI
22nd Jul 2025156 PMAQI
22nd Jul 2025167 PMAQI
22nd Jul 2025168 PMAQI
22nd Jul 2025169 PMAQI
22nd Jul 20251610 PMAQI
22nd Jul 20251611 PMAQI
23rd Jul 20251912 AMAQI
23rd Jul 2025181 AMAQI
23rd Jul 2025172 AMAQI
23rd Jul 2025143 AMAQI
23rd Jul 2025124 AMAQI
23rd Jul 2025125 AMAQI
16°C10/24°C
23rd Jul 2025136 AMAQI
23rd Jul 2025137 AMAQI
23rd Jul 2025138 AMAQI
23rd Jul 2025149 AMAQI
23rd Jul 20251510 AMAQI
23rd Jul 20251511 AMAQI
23rd Jul 20251612 PMAQI
23rd Jul 2025161 PMAQI
23rd Jul 2025172 PMAQI
23rd Jul 2025173 PMAQI
23rd Jul 2025174 PMAQI
23rd Jul 2025175 PMAQI
23rd Jul 2025166 PMAQI
23rd Jul 2025167 PMAQI
23rd Jul 2025168 PMAQI
23rd Jul 2025159 PMAQI
23rd Jul 20251610 PMAQI
23rd Jul 20251611 PMAQI
24th Jul 20251612 AMAQI
24th Jul 2025151 AMAQI
24th Jul 2025142 AMAQI
24th Jul 2025163 AMAQI
24th Jul 2025144 AMAQI
24th Jul 2025135 AMAQI
16°C10/25°C
24th Jul 2025126 AMAQI
24th Jul 2025147 AMAQI
24th Jul 2025148 AMAQI
24th Jul 2025149 AMAQI
24th Jul 20251410 AMAQI
24th Jul 20251411 AMAQI
24th Jul 20251512 PMAQI
24th Jul 2025151 PMAQI
24th Jul 2025172 PMAQI
24th Jul 2025163 PMAQI
24th Jul 2025174 PMAQI
24th Jul 2025165 PMAQI
24th Jul 2025186 PMAQI
24th Jul 2025157 PMAQI
24th Jul 2025168 PMAQI
24th Jul 2025169 PMAQI
24th Jul 20251510 PMAQI
24th Jul 20251711 PMAQI
25th Jul 20251612 AMAQI
25th Jul 2025161 AMAQI
25th Jul 2025162 AMAQI
25th Jul 2025163 AMAQI
25th Jul 2025144 AMAQI
25th Jul 2025155 AMAQI
17°C13/23°C
25th Jul 2025176 AMAQI
25th Jul 2025187 AMAQI
25th Jul 2025168 AMAQI
25th Jul 2025169 AMAQI
25th Jul 20251410 AMAQI
25th Jul 20251511 AMAQI
25th Jul 20251612 PMAQI
25th Jul 2025221 PMAQI
25th Jul 2025172 PMAQI
25th Jul 2025183 PMAQI
25th Jul 2025174 PMAQI
25th Jul 2025175 PMAQI
25th Jul 2025176 PMAQI
25th Jul 2025187 PMAQI
25th Jul 2025178 PMAQI
25th Jul 2025179 PMAQI
25th Jul 20251810 PMAQI
25th Jul 20251911 PMAQI
26th Jul 20251912 AMAQI
26th Jul 2025171 AMAQI
26th Jul 2025172 AMAQI
26th Jul 2025163 AMAQI
26th Jul 2025144 AMAQI
26th Jul 2025155 AMAQI
16°C12/26°C
26th Jul 2025146 AMAQI
26th Jul 2025137 AMAQI
26th Jul 2025148 AMAQI
26th Jul 2025159 AMAQI
26th Jul 20251510 AMAQI
26th Jul 20251411 AMAQI
26th Jul 20251512 PMAQI
26th Jul 2025131 PMAQI
26th Jul 2025152 PMAQI
26th Jul 2025163 PMAQI
26th Jul 2025164 PMAQI
26th Jul 2025155 PMAQI
26th Jul 2025166 PMAQI
26th Jul 2025167 PMAQI
26th Jul 2025168 PMAQI
26th Jul 2025199 PMAQI
26th Jul 20252010 PMAQI
26th Jul 20252011 PMAQI
27th Jul 20252112 AMAQI
27th Jul 2025191 AMAQI
27th Jul 2025182 AMAQI
27th Jul 2025163 AMAQI
27th Jul 2025144 AMAQI
27th Jul 2025165 AMAQI
16°C10/26°C
27th Jul 2025196 AMAQI
27th Jul 2025177 AMAQI
27th Jul 2025188 AMAQI
27th Jul 2025189 AMAQI
27th Jul 20251910 AMAQI
27th Jul 20251811 AMAQI
27th Jul 20252012 PMAQI
27th Jul 2025191 PMAQI
27th Jul 2025142 PMAQI
27th Jul 2025173 PMAQI
27th Jul 2025174 PMAQI
27th Jul 2025165 PMAQI
27th Jul 2025186 PMAQI
27th Jul 2025167 PMAQI
27th Jul 2025158 PMAQI
27th Jul 2025179 PMAQI
27th Jul 20251710 PMAQI
27th Jul 20251711 PMAQI
28th Jul 20251812 AMAQI
28th Jul 2025191 AMAQI
28th Jul 2025222 AMAQI
28th Jul 2025223 AMAQI
28th Jul 2025194 AMAQI
28th Jul 2025165 AMAQI
16°C10/26°C
28th Jul 2025166 AMAQI
28th Jul 2025187 AMAQI
28th Jul 2025208 AMAQI
28th Jul 2025189 AMAQI
28th Jul 20251610 AMAQI
28th Jul 20251711 AMAQI
28th Jul 20251812 PMAQI
28th Jul 2025281 PMAQI
28th Jul 2025242 PMAQI
28th Jul 2025223 PMAQI
28th Jul 2025224 PMAQI
28th Jul 2025275 PMAQI
28th Jul 2025226 PMAQI
28th Jul 2025217 PMAQI
28th Jul 2025228 PMAQI
28th Jul 2025269 PMAQI
28th Jul 20252710 PMAQI
28th Jul 20252911 PMAQI
29th Jul 20253312 AMAQI
29th Jul 2025261 AMAQI
29th Jul 2025242 AMAQI
29th Jul 2025243 AMAQI
29th Jul 2025264 AMAQI
29th Jul 2025275 AMAQI
19°C12/31°C
29th Jul 2025276 AMAQI
29th Jul 2025267 AMAQI
29th Jul 2025228 AMAQI
29th Jul 2025209 AMAQI
29th Jul 20252310 AMAQI
29th Jul 20252511 AMAQI
29th Jul 20252412 PMAQI
29th Jul 2025231 PMAQI
29th Jul 2025242 PMAQI
29th Jul 2025253 PMAQI
29th Jul 2025254 PMAQI
29th Jul 2025265 PMAQI
29th Jul 2025306 PMAQI
29th Jul 2025287 PMAQI
29th Jul 2025278 PMAQI
29th Jul 2025339 PMAQI
29th Jul 20253210 PMAQI
29th Jul 20253411 PMAQI
30th Jul 20253612 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025342 AMAQI
30th Jul 2025303 AMAQI
30th Jul 2025224 AMAQI
30th Jul 2025175 AMAQI
20°C11/32°C
30th Jul 2025186 AMAQI
30th Jul 2025227 AMAQI
30th Jul 2025248 AMAQI
30th Jul 2025269 AMAQI
30th Jul 20252510 AMAQI
30th Jul 20252811 AMAQI
30th Jul 20253112 PMAQI
30th Jul 2025321 PMAQI
30th Jul 2025272 PMAQI
30th Jul 2025273 PMAQI
30th Jul 2025274 PMAQI
30th Jul 2025275 PMAQI
30th Jul 2025276 PMAQI
30th Jul 2025277 PMAQI
30th Jul 2025278 PMAQI
30th Jul 2025299 PMAQI
30th Jul 20253110 PMAQI
30th Jul 20252911 PMAQI
31st Jul 20252612 AMAQI
31st Jul 2025231 AMAQI
31st Jul 2025232 AMAQI
31st Jul 2025203 AMAQI
31st Jul 2025174 AMAQI
31st Jul 2025205 AMAQI
17°C11/28°C
31st Jul 2025246 AMAQI
31st Jul 2025247 AMAQI
31st Jul 2025228 AMAQI
31st Jul 2025249 AMAQI
31st Jul 20252610 AMAQI
31st Jul 20253011 AMAQI
31st Jul 20252912 PMAQI
31st Jul 2025301 PMAQI
31st Jul 2025332 PMAQI
31st Jul 2025303 PMAQI
31st Jul 2025264 PMAQI
31st Jul 2025225 PMAQI
31st Jul 2025216 PMAQI
31st Jul 2025247 PMAQI
31st Jul 2025268 PMAQI
31st Jul 2025289 PMAQI
31st Jul 20252810 PMAQI
31st Jul 20252811 PMAQI
1st Aug 20252812 AMAQI
1st Aug 2025271 AMAQI
1st Aug 2025252 AMAQI
1st Aug 2025243 AMAQI
1st Aug 2025244 AMAQI
1st Aug 2025235 AMAQI
18°C11/30°C
1st Aug 2025216 AMAQI
1st Aug 2025187 AMAQI
1st Aug 2025208 AMAQI
1st Aug 2025209 AMAQI
1st Aug 20251810 AMAQI
1st Aug 20252411 AMAQI
1st Aug 20252412 PMAQI
1st Aug 2025201 PMAQI
1st Aug 2025232 PMAQI
1st Aug 2025223 PMAQI
1st Aug 2025224 PMAQI
1st Aug 2025225 PMAQI
1st Aug 2025266 PMAQI
1st Aug 2025237 PMAQI
1st Aug 2025248 PMAQI
1st Aug 2025269 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252411 PMAQI
2nd Aug 20252212 AMAQI
2nd Aug 2025221 AMAQI
2nd Aug 2025252 AMAQI
2nd Aug 2025253 AMAQI
2nd Aug 2025224 AMAQI
2nd Aug 2025215 AMAQI
17°C11/28°C
2nd Aug 2025206 AMAQI
2nd Aug 2025207 AMAQI
2nd Aug 2025228 AMAQI
2nd Aug 2025219 AMAQI
2nd Aug 20252010 AMAQI
2nd Aug 20252211 AMAQI
2nd Aug 20252212 PMAQI
2nd Aug 2025241 PMAQI
2nd Aug 2025262 PMAQI
2nd Aug 2025263 PMAQI
2nd Aug 2025244 PMAQI
2nd Aug 2025275 PMAQI
2nd Aug 2025306 PMAQI
2nd Aug 2025247 PMAQI
2nd Aug 2025258 PMAQI
2nd Aug 2025229 PMAQI
2nd Aug 20252210 PMAQI
2nd Aug 20252011 PMAQI
3rd Aug 20252012 AMAQI
3rd Aug 2025201 AMAQI
3rd Aug 2025202 AMAQI
3rd Aug 2025233 AMAQI
3rd Aug 2025204 AMAQI
3rd Aug 2025225 AMAQI
17°C11/28°C
3rd Aug 2025216 AMAQI
3rd Aug 2025207 AMAQI
3rd Aug 2025228 AMAQI
3rd Aug 2025189 AMAQI
3rd Aug 20251810 AMAQI
3rd Aug 20252011 AMAQI
3rd Aug 20252412 PMAQI
3rd Aug 2025301 PMAQI
3rd Aug 2025322 PMAQI
3rd Aug 2025343 PMAQI
3rd Aug 2025414 PMAQI
3rd Aug 2025425 PMAQI
3rd Aug 2025406 PMAQI
3rd Aug 2025247 PMAQI
3rd Aug 2025318 PMAQI
3rd Aug 2025409 PMAQI
3rd Aug 20253810 PMAQI
3rd Aug 20254211 PMAQI
4th Aug 20254112 AMAQI
4th Aug 2025381 AMAQI
4th Aug 2025342 AMAQI
4th Aug 2025413 AMAQI
4th Aug 2025424 AMAQI
4th Aug 2025405 AMAQI
18°C12/28°C
4th Aug 2025396 AMAQI
4th Aug 2025387 AMAQI
4th Aug 2025338 AMAQI
4th Aug 2025329 AMAQI
4th Aug 20253210 AMAQI
4th Aug 20253111 AMAQI
4th Aug 20253612 PMAQI
4th Aug 2025401 PMAQI
4th Aug 2025412 PMAQI
4th Aug 2025393 PMAQI
4th Aug 2025344 PMAQI
4th Aug 2025325 PMAQI
4th Aug 2025356 PMAQI
4th Aug 2025387 PMAQI
4th Aug 2025348 PMAQI
4th Aug 2025309 PMAQI
4th Aug 20253210 PMAQI
4th Aug 20253411 PMAQI
5th Aug 20253412 AMAQI
5th Aug 2025311 AMAQI
5th Aug 2025332 AMAQI
5th Aug 2025323 AMAQI
5th Aug 2025344 AMAQI
5th Aug 2025305 AMAQI
18°C12/28°C
5th Aug 2025256 AMAQI
5th Aug 2025227 AMAQI
5th Aug 2025228 AMAQI
5th Aug 2025239 AMAQI
5th Aug 20252210 AMAQI
5th Aug 20252411 AMAQI
5th Aug 20253012 PMAQI
5th Aug 2025341 PMAQI
5th Aug 2025342 PMAQI
5th Aug 2025303 PMAQI
5th Aug 2025284 PMAQI
5th Aug 2025255 PMAQI
5th Aug 2025246 PMAQI
5th Aug 2025287 PMAQI
5th Aug 2025268 PMAQI
5th Aug 2025249 PMAQI
5th Aug 20252310 PMAQI
5th Aug 20252811 PMAQI
6th Aug 20253212 AMAQI
6th Aug 2025361 AMAQI
6th Aug 2025302 AMAQI
6th Aug 2025333 AMAQI
6th Aug 2025344 AMAQI
6th Aug 2025325 AMAQI
19°C12/29°C
6th Aug 2025316 AMAQI
6th Aug 2025287 AMAQI
6th Aug 2025268 AMAQI
6th Aug 2025259 AMAQI
6th Aug 20252610 AMAQI
6th Aug 20252811 AMAQI
6th Aug 20253012 PMAQI
6th Aug 2025361 PMAQI
6th Aug 2025382 PMAQI
6th Aug 2025363 PMAQI
6th Aug 2025294 PMAQI
6th Aug 2025335 PMAQI
6th Aug 2025346 PMAQI
6th Aug 2025327 PMAQI
6th Aug 2025308 PMAQI
6th Aug 2025289 PMAQI
6th Aug 20252810 PMAQI
6th Aug 20252711 PMAQI
7th Aug 20253012 AMAQI
7th Aug 2025321 AMAQI
7th Aug 2025332 AMAQI
7th Aug 2025303 AMAQI
7th Aug 2025254 AMAQI
7th Aug 2025265 AMAQI
22°C11/36°C
7th Aug 2025226 AMAQI
7th Aug 2025217 AMAQI
7th Aug 2025238 AMAQI
7th Aug 2025249 AMAQI
7th Aug 20252210 AMAQI
7th Aug 20252111 AMAQI
7th Aug 20252212 PMAQI
7th Aug 2025241 PMAQI
7th Aug 2025222 PMAQI
7th Aug 2025233 PMAQI
7th Aug 2025234 PMAQI
7th Aug 2025265 PMAQI
7th Aug 2025266 PMAQI
7th Aug 2025267 PMAQI
7th Aug 2025268 PMAQI
7th Aug 2025289 PMAQI
7th Aug 20252510 PMAQI
7th Aug 20252211 PMAQI
8th Aug 20252412 AMAQI
8th Aug 2025241 AMAQI
8th Aug 2025202 AMAQI
8th Aug 2025193 AMAQI
8th Aug 2025174 AMAQI
8th Aug 2025205 AMAQI
21°C13/31°C
8th Aug 2025206 AMAQI
8th Aug 2025197 AMAQI
8th Aug 2025208 AMAQI
8th Aug 2025209 AMAQI
8th Aug 20252410 AMAQI
8th Aug 20252511 AMAQI
8th Aug 20253412 PMAQI
8th Aug 2025211 PMAQI
8th Aug 2025222 PMAQI
8th Aug 2025243 PMAQI
8th Aug 2025264 PMAQI
8th Aug 2025265 PMAQI
8th Aug 2025266 PMAQI
8th Aug 2025247 PMAQI
8th Aug 2025268 PMAQI
8th Aug 2025389 PMAQI
8th Aug 20253910 PMAQI
8th Aug 20254111 PMAQI
9th Aug 20253812 AMAQI
9th Aug 2025401 AMAQI
9th Aug 2025382 AMAQI
9th Aug 2025423 AMAQI
9th Aug 2025424 AMAQI
9th Aug 2025345 AMAQI
22°C12/36°C
9th Aug 2025316 AMAQI
9th Aug 2025357 AMAQI
9th Aug 2025368 AMAQI
9th Aug 2025349 AMAQI
9th Aug 20253210 AMAQI
9th Aug 20253211 AMAQI
9th Aug 20253312 PMAQI
9th Aug 2025331 PMAQI
9th Aug 2025352 PMAQI
9th Aug 2025373 PMAQI
9th Aug 2025364 PMAQI
9th Aug 2025375 PMAQI
9th Aug 2025396 PMAQI
9th Aug 2025387 PMAQI
9th Aug 2025368 PMAQI
9th Aug 2025329 PMAQI
9th Aug 20253110 PMAQI
9th Aug 20253211 PMAQI
10th Aug 20253112 AMAQI
10th Aug 2025291 AMAQI
10th Aug 2025302 AMAQI
10th Aug 2025303 AMAQI
10th Aug 2025244 AMAQI
10th Aug 2025225 AMAQI
23°C14/36°C
10th Aug 2025236 AMAQI
10th Aug 2025267 AMAQI
10th Aug 2025268 AMAQI
10th Aug 2025289 AMAQI
10th Aug 20252810 AMAQI
10th Aug 20253311 AMAQI
10th Aug 20252912 PMAQI
10th Aug 2025261 PMAQI
10th Aug 2025282 PMAQI
10th Aug 2025303 PMAQI
10th Aug 2025294 PMAQI
10th Aug 2025265 PMAQI
10th Aug 2025266 PMAQI
10th Aug 2025287 PMAQI
10th Aug 2025288 PMAQI
10th Aug 2025289 PMAQI
10th Aug 20252710 PMAQI
10th Aug 20252811 PMAQI
11th Aug 20252812 AMAQI
11th Aug 2025311 AMAQI
11th Aug 2025312 AMAQI
11th Aug 2025273 AMAQI
11th Aug 2025304 AMAQI
11th Aug 2025325 AMAQI
23°C15/37°C
11th Aug 2025376 AMAQI
11th Aug 2025367 AMAQI
11th Aug 2025368 AMAQI
11th Aug 2025329 AMAQI
11th Aug 20252910 AMAQI
11th Aug 20252911 AMAQI
11th Aug 20252912 PMAQI
11th Aug 2025321 PMAQI
11th Aug 2025312 PMAQI
11th Aug 2025343 PMAQI
11th Aug 2025374 PMAQI
11th Aug 2025375 PMAQI
11th Aug 2025366 PMAQI
11th Aug 2025307 PMAQI
11th Aug 2025338 PMAQI
11th Aug 2025389 PMAQI
11th Aug 20253510 PMAQI
11th Aug 20253811 PMAQI
12th Aug 20253612 AMAQI
12th Aug 2025341 AMAQI
12th Aug 2025342 AMAQI
12th Aug 2025363 AMAQI
12th Aug 2025354 AMAQI
12th Aug 2025295 AMAQI
21°C13/35°C
12th Aug 2025366 AMAQI
12th Aug 2025297 AMAQI
12th Aug 2025298 AMAQI
12th Aug 2025279 AMAQI
12th Aug 20252810 AMAQI
12th Aug 20253111 AMAQI
12th Aug 20253412 PMAQI
12th Aug 2025391 PMAQI
12th Aug 2025442 PMAQI
12th Aug 2025463 PMAQI
12th Aug 2025454 PMAQI
12th Aug 2025425 PMAQI
12th Aug 2025386 PMAQI
12th Aug 2025337 PMAQI
12th Aug 2025378 PMAQI
12th Aug 2025409 PMAQI
12th Aug 20253910 PMAQI
12th Aug 20253311 PMAQI
13th Aug 20252812 AMAQI
13th Aug 2025261 AMAQI
13th Aug 2025242 AMAQI
13th Aug 2025243 AMAQI
13th Aug 2025304 AMAQI
13th Aug 2025325 AMAQI
20°C13/33°C
13th Aug 2025326 AMAQI
13th Aug 2025347 AMAQI
13th Aug 2025298 AMAQI
13th Aug 2025249 AMAQI
13th Aug 20252410 AMAQI
13th Aug 20252211 AMAQI
13th Aug 20251912 PMAQI
13th Aug 2025201 PMAQI
13th Aug 2025232 PMAQI
13th Aug 2025243 PMAQI
13th Aug 2025264 PMAQI
13th Aug 2025295 PMAQI
13th Aug 2025306 PMAQI
13th Aug 2025297 PMAQI
13th Aug 2025308 PMAQI
13th Aug 2025279 PMAQI
13th Aug 20252410 PMAQI
13th Aug 20252511 PMAQI
14th Aug 20252312 AMAQI
14th Aug 2025181 AMAQI
14th Aug 2025212 AMAQI
14th Aug 2025183 AMAQI
14th Aug 2025214 AMAQI
14th Aug 2025225 AMAQI
19°C14/30°C
14th Aug 2025186 AMAQI
6 AM14th Aug 2025207 AMAQI
14th Aug 2025208 AMAQI
14th Aug 2025189 AMAQI
14th Aug 20252110 AMAQI
14th Aug 20252211 AMAQI
14th Aug 20252012 PMAQI
14th Aug 2025201 PMAQI
1 PM14th Aug 2025202 PMAQI
14th Aug 2025343 PMAQI
14th Aug 2025414 PMAQI
14th Aug 2025295 PMAQI
14th Aug 2025246 PMAQI
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
12 PM - 6 PM
25AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
6 AM - 11 AM
22AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 6 PM (Avg. 25), while the lowest AQI was between 6 AM to 11 AM (Avg. 22).
Night time
Avg. Highest Time
12 AM - 3 AM
25AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
4 AM - 5 AM
22AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 25), while the lowest AQI was between 4 AM to 5 AM (Avg. 22).
2025 Days Vs Air Quality
Hollister, California, United States
2025
100%
224
0.4%
1
Total number of days with different AQI categories in last 226 days in 2025 (139 days remaining)
Good
224 DaysModerate
1 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 226 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Hollister, California, United States
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
33AQI
33AQI
2nd January 2025
28AQI
28AQI
3rd January 2025
27AQI
27AQI
4th January 2025
23AQI
23AQI
5th January 2025
24AQI
24AQI
6th January 2025
23AQI
23AQI
7th January 2025
26AQI
26AQI
8th January 2025
25AQI
25AQI
9th January 2025
25AQI
25AQI
10th January 2025
34AQI
34AQI
11th January 2025
36AQI
36AQI
12th January 2025
34AQI
34AQI
13th January 2025
31AQI
31AQI
14th January 2025
26AQI
26AQI
15th January 2025
28AQI
28AQI
16th January 2025
35AQI
35AQI
17th January 2025
44AQI
44AQI
18th January 2025
49AQI
49AQI
19th January 2025
41AQI
41AQI
20th January 2025
42AQI
42AQI
21st January 2025
30AQI
30AQI
22nd January 2025
38AQI
38AQI
23rd January 2025
35AQI
35AQI
24th January 2025
37AQI
37AQI
25th January 2025
38AQI
38AQI
26th January 2025
25AQI
25AQI
27th January 2025
25AQI
25AQI
28th January 2025
28AQI
28AQI
29th January 2025
30AQI
30AQI
30th January 2025
33AQI
33AQI
31st January 2025
37AQI
37AQI
1st February 2025
35AQI
35AQI
2nd February 2025
24AQI
24AQI
3rd February 2025
21AQI
21AQI
4th February 2025
23AQI
23AQI
5th February 2025
26AQI
26AQI
6th February 2025
23AQI
23AQI
7th February 2025
26AQI
26AQI
8th February 2025
23AQI
23AQI
9th February 2025
22AQI
22AQI
10th February 2025
22AQI
22AQI
11th February 2025
25AQI
25AQI
12th February 2025
24AQI
24AQI
13th February 2025
25AQI
25AQI
14th February 2025
33AQI
33AQI
15th February 2025
32AQI
32AQI
16th February 2025
25AQI
25AQI
17th February 2025
26AQI
26AQI
18th February 2025
24AQI
24AQI
19th February 2025
23AQI
23AQI
20th February 2025
27AQI
27AQI
21st February 2025
21AQI
21AQI
22nd February 2025
26AQI
26AQI
23rd February 2025
24AQI
24AQI
24th February 2025
24AQI
24AQI
25th February 2025
24AQI
24AQI
26th February 2025
27AQI
27AQI
27th February 2025
26AQI
26AQI
28th February 2025
31AQI
31AQI
1st March 2025
29AQI
29AQI
2nd March 2025
29AQI
29AQI
3rd March 2025
22AQI
22AQI
4th March 2025
22AQI
22AQI
5th March 2025
23AQI
23AQI
6th March 2025
28AQI
28AQI
7th March 2025
22AQI
22AQI
8th March 2025
25AQI
25AQI
9th March 2025
25AQI
25AQI
10th March 2025
25AQI
25AQI
11th March 2025
27AQI
27AQI
12th March 2025
28AQI
28AQI
13th March 2025
22AQI
22AQI
14th March 2025
20AQI
20AQI
15th March 2025
39AQI
39AQI
16th March 2025
36AQI
36AQI
17th March 2025
19AQI
19AQI
18th March 2025
17AQI
17AQI
19th March 2025
17AQI
17AQI
20th March 2025
17AQI
17AQI
21st March 2025
19AQI
19AQI
22nd March 2025
21AQI
21AQI
23rd March 2025
22AQI
22AQI
24th March 2025
19AQI
19AQI
25th March 2025
23AQI
23AQI
26th March 2025
20AQI
20AQI
27th March 2025
18AQI
18AQI
28th March 2025
23AQI
23AQI
29th March 2025
17AQI
17AQI
30th March 2025
16AQI
16AQI
31st March 2025
20AQI
20AQI
1st April 2025
17AQI
17AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
18AQI
18AQI
4th April 2025
20AQI
20AQI
5th April 2025
23AQI
23AQI
6th April 2025
17AQI
17AQI
7th April 2025
14AQI
14AQI
8th April 2025
17AQI
17AQI
9th April 2025
17AQI
17AQI
10th April 2025
24AQI
24AQI
11th April 2025
24AQI
24AQI
12th April 2025
33AQI
33AQI
13th April 2025
34AQI
34AQI
14th April 2025
32AQI
32AQI
15th April 2025
24AQI
24AQI
16th April 2025
30AQI
30AQI
17th April 2025
25AQI
25AQI
18th April 2025
24AQI
24AQI
19th April 2025
27AQI
27AQI
20th April 2025
25AQI
25AQI
21st April 2025
24AQI
24AQI
22nd April 2025
29AQI
29AQI
23rd April 2025
39AQI
39AQI
24th April 2025
32AQI
32AQI
25th April 2025
20AQI
20AQI
26th April 2025
14AQI
14AQI
27th April 2025
17AQI
17AQI
28th April 2025
27AQI
27AQI
29th April 2025
31AQI
31AQI
30th April 2025
28AQI
28AQI
1st May 2025
27AQI
27AQI
2nd May 2025
26AQI
26AQI
3rd May 2025
22AQI
22AQI
4th May 2025
38AQI
38AQI
5th May 2025
33AQI
33AQI
6th May 2025
46AQI
46AQI
7th May 2025
43AQI
43AQI
8th May 2025
36AQI
36AQI
9th May 2025
30AQI
30AQI
10th May 2025
32AQI
32AQI
11th May 2025
28AQI
28AQI
12th May 2025
18AQI
18AQI
13th May 2025
17AQI
17AQI
14th May 2025
25AQI
25AQI
15th May 2025
32AQI
32AQI
16th May 2025
41AQI
41AQI
17th May 2025
27AQI
27AQI
18th May 2025
25AQI
25AQI
19th May 2025
38AQI
38AQI
20th May 2025
27AQI
27AQI
21st May 2025
34AQI
34AQI
22nd May 2025
35AQI
35AQI
23rd May 2025
30AQI
30AQI
24th May 2025
27AQI
27AQI
25th May 2025
25AQI
25AQI
26th May 2025
20AQI
20AQI
27th May 2025
21AQI
21AQI
28th May 2025
29AQI
29AQI
29th May 2025
21AQI
21AQI
30th May 2025
30AQI
30AQI
31st May 2025
43AQI
43AQI
1st June 2025
47AQI
47AQI
2nd June 2025
51AQI
51AQI
3rd June 2025
32AQI
32AQI
4th June 2025
40AQI
40AQI
5th June 2025
37AQI
37AQI
6th June 2025
24AQI
24AQI
7th June 2025
27AQI
27AQI
8th June 2025
21AQI
21AQI
9th June 2025
19AQI
19AQI
10th June 2025
24AQI
24AQI
11th June 2025
34AQI
34AQI
12th June 2025
46AQI
46AQI
13th June 2025
47AQI
47AQI
14th June 2025
42AQI
42AQI
15th June 2025
38AQI
38AQI
16th June 2025
43AQI
43AQI
17th June 2025
34AQI
34AQI
18th June 2025
32AQI
32AQI
19th June 2025
43AQI
43AQI
20th June 2025
41AQI
41AQI
21st June 2025
28AQI
28AQI
22nd June 2025
25AQI
25AQI
23rd June 2025
31AQI
31AQI
24th June 2025
24AQI
24AQI
25th June 2025
25AQI
25AQI
26th June 2025
27AQI
27AQI
27th June 2025
30AQI
30AQI
28th June 2025
30AQI
30AQI
29th June 2025
28AQI
28AQI
30th June 2025
23AQI
23AQI
1st July 2025
25AQI
25AQI
2nd July 2025
23AQI
23AQI
3rd July 2025
34AQI
34AQI
4th July 2025
30AQI
30AQI
5th July 2025
44AQI
44AQI
6th July 2025
33AQI
33AQI
7th July 2025
27AQI
27AQI
8th July 2025
22AQI
22AQI
9th July 2025
21AQI
21AQI
10th July 2025
25AQI
25AQI
11th July 2025
30AQI
30AQI
12th July 2025
34AQI
34AQI
13th July 2025
29AQI
29AQI
14th July 2025
24AQI
24AQI
15th July 2025
21AQI
21AQI
16th July 2025
19AQI
19AQI
17th July 2025
21AQI
21AQI
18th July 2025
19AQI
19AQI
19th July 2025
23AQI
23AQI
20th July 2025
24AQI
24AQI
21st July 2025
21AQI
21AQI
22nd July 2025
15AQI
15AQI
23rd July 2025
15AQI
15AQI
24th July 2025
15AQI
15AQI
25th July 2025
17AQI
17AQI
26th July 2025
16AQI
16AQI
27th July 2025
17AQI
17AQI
28th July 2025
21AQI
21AQI
29th July 2025
27AQI
27AQI
30th July 2025
28AQI
28AQI
31st July 2025
25AQI
25AQI
1st August 2025
23AQI
23AQI
2nd August 2025
23AQI
23AQI
3rd August 2025
28AQI
28AQI
4th August 2025
36AQI
36AQI
5th August 2025
28AQI
28AQI
6th August 2025
31AQI
31AQI
7th August 2025
26AQI
26AQI
8th August 2025
25AQI
25AQI
9th August 2025
36AQI
36AQI
10th August 2025
28AQI
28AQI
11th August 2025
33AQI
33AQI
12th August 2025
35AQI
35AQI
13th August 2025
26AQI
26AQI
32AQI
25AQI
23AQI
24AQI
30AQI
33AQI
24AQI
29AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202527AQI
31
28
31
30
31
29
1
31
13
224
1
Highest AQI recorded in
June33AQI
Lowest AQI recorded in
March23AQI
202433AQI
31
29
29
30
29
2
26
3
31
31
30
31
28
2
28
3
353
10
Highest AQI recorded in
June38AQI
Lowest AQI recorded in
March26AQI
202352AQI
24
1
6
24
4
26
2
30
31
22
1
6
25
27
2
23
4
1
24
7
27
31
314
12
3
19
Highest AQI recorded in
October123AQI
Lowest AQI recorded in
December25AQI
202229AQI
29
1
22
31
17
31
30
18
2
27
2
30
1
29
31
297
4
Highest AQI recorded in
May34AQI
Lowest AQI recorded in
July25AQI
202131AQI
29
1
28
31
30
31
29
1
31
27
18
29
2
30
26
2
339
6
Highest AQI recorded in
September36AQI
Lowest AQI recorded in
November26AQI
202040AQI
13
20
19
30
29
2
21
5
4
1
13
11
4
2
15
12
2
1
28
2
30
1
218
33
10
4
Highest AQI recorded in
September66AQI
Lowest AQI recorded in
May26AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
52AQILeast Polluted Year Recorded
2025(Avg.)
27AQIHollister's annual 2025 AQI (27) shows an average percentage change of -22.2% (improved AQI) compared to previous years: 2020 (40), 2021 (31), 2022 (29), 2023 (52), 2024 (33).
